Home / 13,938.24-20,909.76-4,702.08

Finding the Fourth Proportional to 13,938.24, 20,909.76 and 4,702.08

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Solution

The fourth proportional to 13,938.24, 20,909.76 and 4,702.08 is: 7,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.24 : 20,909.76 = 4,702.08 : x
  2. Step 2: Convert to fraction form
    13,938.24/20,909.76 = 4,702.08/x
  3. Step 3: Cross multiply
    13,938.24x = 20,909.76 × 4,702.08
  4. Step 4: Simplify right side
    13,938.24x = 98,319,364.30
  5. Step 5: Solve for x
    x = 98,319,364.30/13,938.24
  6. Step 6: Final answer
    x = 7,053.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.